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Restructuring Plans (Tables) | 12 Months Ended
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Sep. 30, 2019
Restructuring And Related Activities [Abstract] |
Schedule of Restructuring Activity of Continuing Operations | The table below details the restructuring activity at our continuing operations for the year ended September 30, 2019. This activity is primarily related to the departure of our former CEO as well as additional headcount reductions as we consolidated satellite offices in our Semiconductor segment. The outstanding obligations as of September 30, 2019, are as follows, in thousands:
|  | Year Ended September 30, |
Balance at September 30, 2018 |  | $ | — |
Severance expense, net of adjustments |  |  | 1,110 |
Cash payments |  |  | (1,070 | )
Balance at September 30, 2019 |  | $ | 40 |

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